Call For Paper Volume:4 Issue:10 Oct'2017 |

GROUP BASED USER REVOCATION USING KEY GENERATION

Publication Date : 18/05/2015



Author(s) :

VASANTHAPRIYA.P , T.K.P.RAJAGOPAL.


Volume/Issue :
Volume 2
,
Issue 5
(05 - 2015)



Abstract :

-In the cloud with the help of data storage and sharing services, users can easily modify and share data as a group. In many cases the employees inside the organization itself is not trustful for their concern.So many threads are happening due to employees inside the organisation. In order to overcome this problem, we propose a new decentralized access control scheme for secure data storage in clouds that supports anonymous authentication. The cloud verifies the authenticity of the series without knowing the user’s identity before storing data. Employee groups will be created, each group will be provided with a group key and each employee will be provided with a personal key. All the uploaded data will be stores in the centralized server. Our scheme also has the added feature of access control in which only valid users are able to decrypt the stored information. The scheme prevents data stored in the cloud from anonymous users. The revocation process will modify the key if those users must not have the ability to access data, even if they possess matching set of attributes. For this reason, the owners should change the stored data key and send updated information to other users.In order to access the file system the employee need to use their both group key and personal key. Both key will be get authenticated in the cloud server for data access and data transfer. The communication, computation, and storage overheads are comparable to centralized approaches. So that key will be changed in case of resigning of new users or introduction of new user. User resigned from the group cant able to create any threads to the xisting groups.


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GROUP BASED USER REVOCATION USING KEY GENERATION

May 18, 2015